The Ultrahuman Ring AIR Smart Ring combines advanced technology with a modern design to help you track your wellness. Made from fighter jet grade titanium and a tungsten carbide carbon coating, it is built to last while looking great. The inner shell uses medical-grade hypoallergenic epoxy resin for comfort on your skin. This smart ring works with both iOS 14 or later and Android 6 or later, making it easy to connect to your devices. It has a rechargeable lithium polymer battery that lasts up to 6 days, needing just 2 to 3 hours to fully charge. With Bluetooth Low Energy technology, the ring connects easily to your smartphone for quick access to your data. It features a 6-axis motion sensor to accurately track your movements, while red LEDs monitor your heart rate and oxygen levels. Additionally, it is safe from EMF radiation, ensuring your well-being while using it. The Ultrahuman Ring AIR Smart Ring is an excellent choice for anyone wanting to monitor their health easily and stylishly.